The Evolution of Man 



Series of Lectures 'Delivered before the 

 Yale Chapter of the Sigma Xi during the 

 ^Academic Tear 1921-1922 



Richard Swann Lull 



Harry Burr Ferris 



Gjeorge Howard barker 



jfames Rowland Angell 



^Albert Galloway Keller 



dwin Cjrant Conklin 



edited by (jeorge Alfred *Baitsell 



NEW HAVEN 

 YALE UNIVERSITY PRESS 



London : Humphrey Milford : Oxford University 'Press 

 MDCCCCXXII 



